./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:49:47,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:49:47,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:49:47,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:49:47,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:49:47,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:49:47,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:49:47,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:49:47,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:49:47,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:49:47,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:49:47,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:49:47,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:49:47,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:49:47,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:49:47,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:49:47,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:49:47,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:49:47,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:49:47,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:49:47,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:49:47,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:49:47,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:49:47,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:49:47,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:49:47,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:49:47,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:49:47,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:49:47,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:49:47,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:49:47,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:49:47,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:49:47,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:49:47,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:49:47,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:49:47,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:49:47,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:49:47,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:49:47,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:49:47,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:49:47,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:49:47,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 14:49:47,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:49:47,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:49:47,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:49:47,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:49:47,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:49:47,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:49:47,896 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:49:47,896 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 14:49:47,896 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 14:49:47,896 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 14:49:47,896 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 14:49:47,897 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 14:49:47,897 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 14:49:47,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:49:47,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:49:47,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:49:47,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:49:47,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:49:47,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:49:47,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 14:49:47,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 14:49:47,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 14:49:47,899 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:49:47,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:49:47,899 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 14:49:47,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:49:47,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 14:49:47,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:49:47,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:49:47,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:49:47,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:49:47,901 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 14:49:47,901 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2022-12-13 14:49:48,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:49:48,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:49:48,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:49:48,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:49:48,117 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:49:48,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-12-13 14:49:50,740 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:49:50,898 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:49:50,899 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2022-12-13 14:49:50,906 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/data/8f63c2a89/b1f2eaafc2324cc3b775e7295c4faf7e/FLAGc00138dd7 [2022-12-13 14:49:50,916 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/data/8f63c2a89/b1f2eaafc2324cc3b775e7295c4faf7e [2022-12-13 14:49:50,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:49:50,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:49:50,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:49:50,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:49:50,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:49:50,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:49:50" (1/1) ... [2022-12-13 14:49:50,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5274c0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:50, skipping insertion in model container [2022-12-13 14:49:50,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:49:50" (1/1) ... [2022-12-13 14:49:50,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:49:50,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:49:51,160 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-12-13 14:49:51,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:49:51,218 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:49:51,240 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c[8617,8630] [2022-12-13 14:49:51,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:49:51,275 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:49:51,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51 WrapperNode [2022-12-13 14:49:51,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:49:51,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:49:51,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:49:51,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:49:51,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,317 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 53, calls inlined = 98, statements flattened = 684 [2022-12-13 14:49:51,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:49:51,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:49:51,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:49:51,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:49:51,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:49:51,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:49:51,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:49:51,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:49:51,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (1/1) ... [2022-12-13 14:49:51,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:49:51,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:49:51,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:49:51,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 14:49:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:49:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:49:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:49:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:49:51,466 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:49:51,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:49:51,832 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:49:51,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:49:51,841 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 14:49:51,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:49:51 BoogieIcfgContainer [2022-12-13 14:49:51,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:49:51,844 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 14:49:51,844 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 14:49:51,848 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 14:49:51,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:49:51,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 02:49:50" (1/3) ... [2022-12-13 14:49:51,850 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60667ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:49:51, skipping insertion in model container [2022-12-13 14:49:51,850 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:49:51,850 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:49:51" (2/3) ... [2022-12-13 14:49:51,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60667ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:49:51, skipping insertion in model container [2022-12-13 14:49:51,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:49:51,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:49:51" (3/3) ... [2022-12-13 14:49:51,853 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2022-12-13 14:49:51,905 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 14:49:51,905 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 14:49:51,905 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 14:49:51,905 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 14:49:51,906 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 14:49:51,906 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 14:49:51,906 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 14:49:51,906 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 14:49:51,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:51,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-12-13 14:49:51,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:49:51,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:49:51,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:51,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:51,934 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 14:49:51,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:51,940 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-12-13 14:49:51,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:49:51,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:49:51,941 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:51,941 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:51,945 INFO L748 eck$LassoCheckResult]: Stem: 41#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 62#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 35#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 147#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 125#valid_product_returnLabel#1true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 153#L275true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 103#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 128#L496-2true [2022-12-13 14:49:51,945 INFO L750 eck$LassoCheckResult]: Loop: 128#L496-2true assume !false; 173#L497true assume test_~splverifierCounter~0#1 < 4; 119#L498true test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 162#L506true assume !(0 != test_~tmp~6#1); 151#L506-2true test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 113#L516true assume !(0 != test_~tmp___0~2#1); 43#L516-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 132#L526true assume 0 != test_~tmp___2~0#1; 27#L532-2true assume { :begin_inline_timeShift } true; 42#L298true assume !(0 != ~pumpRunning~0); 36#L298-2true assume !(0 != ~systemActive~0); 33#L305-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 94#isMethaneLevelCritical_returnLabel#4true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 9#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 181#L69-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 91#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 128#L496-2true [2022-12-13 14:49:51,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:51,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 14:49:51,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:51,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522297404] [2022-12-13 14:49:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:51,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:52,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1685694358, now seen corresponding path program 1 times [2022-12-13 14:49:52,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608895008] [2022-12-13 14:49:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1253853862, now seen corresponding path program 1 times [2022-12-13 14:49:52,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144256763] [2022-12-13 14:49:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:49:52,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:49:52,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144256763] [2022-12-13 14:49:52,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144256763] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:49:52,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:49:52,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:49:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106826488] [2022-12-13 14:49:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:49:52,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:49:52,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:49:52,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:49:52,304 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:49:52,367 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2022-12-13 14:49:52,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 238 transitions. [2022-12-13 14:49:52,373 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-12-13 14:49:52,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 173 states and 228 transitions. [2022-12-13 14:49:52,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2022-12-13 14:49:52,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-12-13 14:49:52,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 228 transitions. [2022-12-13 14:49:52,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:49:52,381 INFO L218 hiAutomatonCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-12-13 14:49:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 228 transitions. [2022-12-13 14:49:52,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-12-13 14:49:52,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2022-12-13 14:49:52,412 INFO L240 hiAutomatonCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-12-13 14:49:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:49:52,417 INFO L428 stractBuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-12-13 14:49:52,418 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 14:49:52,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 228 transitions. [2022-12-13 14:49:52,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-12-13 14:49:52,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:49:52,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:49:52,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:52,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:52,422 INFO L748 eck$LassoCheckResult]: Stem: 459#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 460#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 451#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 452#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 539#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 540#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 518#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 508#L496-2 [2022-12-13 14:49:52,422 INFO L750 eck$LassoCheckResult]: Loop: 508#L496-2 assume !false; 541#L497 assume test_~splverifierCounter~0#1 < 4; 531#L498 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 532#L506 assume !(0 != test_~tmp~6#1); 544#L506-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 525#L516 assume !(0 != test_~tmp___0~2#1); 462#L516-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 463#L526 assume 0 != test_~tmp___2~0#1; 437#L532-2 assume { :begin_inline_timeShift } true; 438#L298 assume !(0 != ~pumpRunning~0); 453#L298-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 454#L356 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 405#L330-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 387#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 388#L330-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 411#L356-1 assume { :end_inline_processEnvironment } true; 448#L305-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 449#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 398#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 399#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 507#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 508#L496-2 [2022-12-13 14:49:52,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 14:49:52,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807162241] [2022-12-13 14:49:52,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1995003583, now seen corresponding path program 1 times [2022-12-13 14:49:52,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749894045] [2022-12-13 14:49:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:49:52,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:49:52,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749894045] [2022-12-13 14:49:52,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749894045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:49:52,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:49:52,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:49:52,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411091007] [2022-12-13 14:49:52,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:49:52,471 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 14:49:52,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:49:52,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:49:52,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:49:52,472 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:49:52,530 INFO L93 Difference]: Finished difference Result 240 states and 305 transitions. [2022-12-13 14:49:52,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 240 states and 305 transitions. [2022-12-13 14:49:52,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2022-12-13 14:49:52,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 240 states to 240 states and 305 transitions. [2022-12-13 14:49:52,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 240 [2022-12-13 14:49:52,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 240 [2022-12-13 14:49:52,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 240 states and 305 transitions. [2022-12-13 14:49:52,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:49:52,536 INFO L218 hiAutomatonCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-12-13 14:49:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states and 305 transitions. [2022-12-13 14:49:52,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2022-12-13 14:49:52,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 240 states have (on average 1.2708333333333333) internal successors, (305), 239 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 305 transitions. [2022-12-13 14:49:52,548 INFO L240 hiAutomatonCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-12-13 14:49:52,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:49:52,549 INFO L428 stractBuchiCegarLoop]: Abstraction has 240 states and 305 transitions. [2022-12-13 14:49:52,549 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 14:49:52,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 240 states and 305 transitions. [2022-12-13 14:49:52,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2022-12-13 14:49:52,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:49:52,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:49:52,552 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:52,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:52,552 INFO L748 eck$LassoCheckResult]: Stem: 877#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 878#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 869#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 870#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 964#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 965#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 941#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 942#L496-2 [2022-12-13 14:49:52,552 INFO L750 eck$LassoCheckResult]: Loop: 942#L496-2 assume !false; 1011#L497 assume test_~splverifierCounter~0#1 < 4; 1010#L498 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1008#L506 assume !(0 != test_~tmp~6#1); 1006#L506-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1004#L516 assume !(0 != test_~tmp___0~2#1); 1001#L516-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1000#L526 assume 0 != test_~tmp___2~0#1; 998#L532-2 assume { :begin_inline_timeShift } true; 879#L298 assume !(0 != ~pumpRunning~0); 871#L298-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 872#L356 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 822#L330-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 823#L176-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 868#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 908#L475-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 806#L475-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 807#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 983#L334-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 897#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 898#L330-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 978#L356-1 assume { :end_inline_processEnvironment } true; 1020#L305-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1019#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1015#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1013#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1012#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 942#L496-2 [2022-12-13 14:49:52,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 14:49:52,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259863573] [2022-12-13 14:49:52,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,580 INFO L85 PathProgramCache]: Analyzing trace with hash -413166695, now seen corresponding path program 1 times [2022-12-13 14:49:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526058669] [2022-12-13 14:49:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,590 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:52,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:52,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:52,600 INFO L85 PathProgramCache]: Analyzing trace with hash -37878955, now seen corresponding path program 1 times [2022-12-13 14:49:52,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:52,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741219926] [2022-12-13 14:49:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:49:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:49:52,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:49:52,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741219926] [2022-12-13 14:49:52,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741219926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:49:52,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:49:52,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:49:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034071209] [2022-12-13 14:49:52,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:49:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:49:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:49:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:49:52,851 INFO L87 Difference]: Start difference. First operand 240 states and 305 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:49:52,997 INFO L93 Difference]: Finished difference Result 824 states and 1044 transitions. [2022-12-13 14:49:52,997 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 824 states and 1044 transitions. [2022-12-13 14:49:53,004 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 592 [2022-12-13 14:49:53,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 824 states to 824 states and 1044 transitions. [2022-12-13 14:49:53,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 824 [2022-12-13 14:49:53,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 824 [2022-12-13 14:49:53,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 824 states and 1044 transitions. [2022-12-13 14:49:53,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:49:53,013 INFO L218 hiAutomatonCegarLoop]: Abstraction has 824 states and 1044 transitions. [2022-12-13 14:49:53,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states and 1044 transitions. [2022-12-13 14:49:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 473. [2022-12-13 14:49:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 473 states have (on average 1.2579281183932347) internal successors, (595), 472 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:49:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 595 transitions. [2022-12-13 14:49:53,033 INFO L240 hiAutomatonCegarLoop]: Abstraction has 473 states and 595 transitions. [2022-12-13 14:49:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:49:53,034 INFO L428 stractBuchiCegarLoop]: Abstraction has 473 states and 595 transitions. [2022-12-13 14:49:53,034 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 14:49:53,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 473 states and 595 transitions. [2022-12-13 14:49:53,037 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 332 [2022-12-13 14:49:53,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 14:49:53,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 14:49:53,038 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:53,038 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:49:53,038 INFO L748 eck$LassoCheckResult]: Stem: 1958#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1959#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~3#1, main_~tmp~1#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1950#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1951#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2058#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 2059#L275 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 2029#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2017#L496-2 [2022-12-13 14:49:53,038 INFO L750 eck$LassoCheckResult]: Loop: 2017#L496-2 assume !false; 2320#L497 assume test_~splverifierCounter~0#1 < 4; 2321#L498 test_~tmp~6#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 2358#L506 assume !(0 != test_~tmp~6#1); 2356#L506-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2355#L516 assume !(0 != test_~tmp___0~2#1); 2353#L516-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2337#L526 assume 0 != test_~tmp___2~0#1; 2333#L532-2 assume { :begin_inline_timeShift } true; 1960#L298 assume !(0 != ~pumpRunning~0); 1961#L298-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 2330#L356 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1; 2276#L330-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2327#L176-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2325#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2312#L475-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1888#L475-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1889#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~2#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 2079#L334-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1979#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1978#L330-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1909#L356-1 assume { :end_inline_processEnvironment } true; 1947#L305-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1948#isMethaneLevelCritical_returnLabel#4 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1897#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1898#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 2015#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2099#L69-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2016#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2017#L496-2 [2022-12-13 14:49:53,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:53,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 14:49:53,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:53,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674461421] [2022-12-13 14:49:53,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:53,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:53,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1914948628, now seen corresponding path program 1 times [2022-12-13 14:49:53,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:53,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188295186] [2022-12-13 14:49:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:53,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:53,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:49:53,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2040683352, now seen corresponding path program 1 times [2022-12-13 14:49:53,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:49:53,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002364955] [2022-12-13 14:49:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:49:53,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:49:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:49:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:49:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:49:53,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 02:49:53 BoogieIcfgContainer [2022-12-13 14:49:53,897 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 14:49:53,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:49:53,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:49:53,898 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:49:53,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:49:51" (3/4) ... [2022-12-13 14:49:53,901 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 14:49:53,944 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:49:53,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:49:53,945 INFO L158 Benchmark]: Toolchain (without parser) took 3025.10ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 99.9MB in the beginning and 53.8MB in the end (delta: 46.1MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,945 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:49:53,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.60ms. Allocated memory is still 136.3MB. Free memory was 99.5MB in the beginning and 81.3MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.27ms. Allocated memory is still 136.3MB. Free memory was 81.3MB in the beginning and 77.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,946 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 136.3MB. Free memory was 77.6MB in the beginning and 75.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,946 INFO L158 Benchmark]: RCFGBuilder took 497.69ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 75.2MB in the beginning and 120.3MB in the end (delta: -45.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,947 INFO L158 Benchmark]: BuchiAutomizer took 2053.26ms. Allocated memory is still 165.7MB. Free memory was 120.3MB in the beginning and 56.9MB in the end (delta: 63.3MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,947 INFO L158 Benchmark]: Witness Printer took 46.16ms. Allocated memory is still 165.7MB. Free memory was 56.9MB in the beginning and 53.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:49:53,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.60ms. Allocated memory is still 136.3MB. Free memory was 99.5MB in the beginning and 81.3MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.27ms. Allocated memory is still 136.3MB. Free memory was 81.3MB in the beginning and 77.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 136.3MB. Free memory was 77.6MB in the beginning and 75.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.69ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 75.2MB in the beginning and 120.3MB in the end (delta: -45.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2053.26ms. Allocated memory is still 165.7MB. Free memory was 120.3MB in the beginning and 56.9MB in the end (delta: 63.3MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Witness Printer took 46.16ms. Allocated memory is still 165.7MB. Free memory was 56.9MB in the beginning and 53.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 473 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 351 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1972 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1972 mSDsluCounter, 1895 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1126 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 769 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 496]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L187] int cleanupTimeShifts = 4; [L291] int pumpRunning = 0; [L292] int systemActive = 1; [L764] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] int retValue_acc ; [L267] int tmp ; [L271] FCALL select_helpers() [L272] FCALL select_features() [L273] CALL, EXPR valid_product() [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L273] RET, EXPR valid_product() [L273] tmp = valid_product() [L275] COND TRUE \read(tmp) [L277] FCALL setup() [L278] CALL runTest() [L257] CALL test() [L487] int splverifierCounter ; [L488] int tmp ; [L489] int tmp___0 ; [L490] int tmp___1 ; [L491] int tmp___2 ; [L494] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L496] COND TRUE 1 [L498] COND TRUE splverifierCounter < 4 [L504] tmp = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp)) [L514] tmp___0 = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp___0)) [L524] tmp___2 = __VERIFIER_nondet_int() [L526] COND TRUE \read(tmp___2) [L539] CALL timeShift() [L298] COND FALSE !(\read(pumpRunning)) [L305] COND TRUE \read(systemActive) [L307] CALL processEnvironment() [L353] int tmp ; [L356] COND FALSE !(\read(pumpRunning)) [L371] CALL processEnvironment__wrappee__methaneQuery() [L327] int tmp ; [L330] COND TRUE ! pumpRunning [L332] CALL, EXPR isHighWaterLevel() [L467] int retValue_acc ; [L468] int tmp ; [L469] int tmp___0 ; [L473] CALL, EXPR isHighWaterSensorDry() [L173] int retValue_acc ; [L176] COND TRUE waterLevel < 2 [L177] retValue_acc = 1 [L178] return (retValue_acc); [L473] RET, EXPR isHighWaterSensorDry() [L473] tmp = isHighWaterSensorDry() [L475] COND TRUE \read(tmp) [L476] tmp___0 = 0 [L480] retValue_acc = tmp___0 [L481] return (retValue_acc); [L332] RET, EXPR isHighWaterLevel() [L332] tmp = isHighWaterLevel() [L334] COND FALSE !(\read(tmp)) [L340] FCALL processEnvironment__wrappee__base() [L371] RET processEnvironment__wrappee__methaneQuery() [L307] RET processEnvironment() [L313] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L313] RET __utac_acc__Specification3_spec__1() [L539] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 496]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L93] int waterLevel = 1; [L94] int methaneLevelCritical = 0; [L187] int cleanupTimeShifts = 4; [L291] int pumpRunning = 0; [L292] int systemActive = 1; [L764] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] int retValue_acc ; [L267] int tmp ; [L271] FCALL select_helpers() [L272] FCALL select_features() [L273] CALL, EXPR valid_product() [L577] int retValue_acc ; [L580] retValue_acc = 1 [L581] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L273] RET, EXPR valid_product() [L273] tmp = valid_product() [L275] COND TRUE \read(tmp) [L277] FCALL setup() [L278] CALL runTest() [L257] CALL test() [L487] int splverifierCounter ; [L488] int tmp ; [L489] int tmp___0 ; [L490] int tmp___1 ; [L491] int tmp___2 ; [L494] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L496] COND TRUE 1 [L498] COND TRUE splverifierCounter < 4 [L504] tmp = __VERIFIER_nondet_int() [L506] COND FALSE !(\read(tmp)) [L514] tmp___0 = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp___0)) [L524] tmp___2 = __VERIFIER_nondet_int() [L526] COND TRUE \read(tmp___2) [L539] CALL timeShift() [L298] COND FALSE !(\read(pumpRunning)) [L305] COND TRUE \read(systemActive) [L307] CALL processEnvironment() [L353] int tmp ; [L356] COND FALSE !(\read(pumpRunning)) [L371] CALL processEnvironment__wrappee__methaneQuery() [L327] int tmp ; [L330] COND TRUE ! pumpRunning [L332] CALL, EXPR isHighWaterLevel() [L467] int retValue_acc ; [L468] int tmp ; [L469] int tmp___0 ; [L473] CALL, EXPR isHighWaterSensorDry() [L173] int retValue_acc ; [L176] COND TRUE waterLevel < 2 [L177] retValue_acc = 1 [L178] return (retValue_acc); [L473] RET, EXPR isHighWaterSensorDry() [L473] tmp = isHighWaterSensorDry() [L475] COND TRUE \read(tmp) [L476] tmp___0 = 0 [L480] retValue_acc = tmp___0 [L481] return (retValue_acc); [L332] RET, EXPR isHighWaterLevel() [L332] tmp = isHighWaterLevel() [L334] COND FALSE !(\read(tmp)) [L340] FCALL processEnvironment__wrappee__base() [L371] RET processEnvironment__wrappee__methaneQuery() [L307] RET processEnvironment() [L313] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L132] int retValue_acc ; [L135] retValue_acc = methaneLevelCritical [L136] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L164] int retValue_acc ; [L167] retValue_acc = waterLevel [L168] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L313] RET __utac_acc__Specification3_spec__1() [L539] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 14:49:53,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09efe4f3-f70d-4d02-9b2c-868221c13e44/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)